test/built-ins/Object/keys/15.2.3.14-1-4.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.14-1-4
description: >
    Object.keys throws TypeError if type of first param is not Object
    (null)
---*/


assert.throws(TypeError, function() {
  Object.keys(null);
});